CONTROL-RELEVANT IDENTIFICATION OF THE FIRST-ORDER INERTIAL SYSTEMS WITH TIME-DELAY

Abstract

This paper presents an approach for control-relevant identification of inertial systems with time delay. The experimental identification was conducted in closed-loop, and the control object is approximated by a first-order inertial transfer function with time delay. The coefficients were determined using simple analytical expressions based on values obtained from the undamped step response of the closed-loop system with a P controller. This study enhances the understanding of closed-loop experimental identification of inertial systems with time delay and offers effective strategies for synthesizing the PID control algorithm. The obtained results are validated through computer simulation using the MATLAB software package. The results confirm that the proposed identification method for first-order inertial systems provides accurate model estimation and that the control algorithm delivers good system performance.